Why did yahoo close out my 6 year old acct.-gdzlkng4love@YAHOO.COM?

Somehow they have me listed as gdzlps? I want my old acct. and my old yahoo mail back, My passcode was 696969, now it's 6969691. What happened? Why can't I call a live personfor help?I am missing over150 emails. HELP ! Thank u, Gary Zlotnick